Figure 2 | Substrate-induced carrier dynamics in Te/Ge and Ge/Te heterojunctions. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 2 | Substrate-induced carrier dynamics in Te/Ge and Ge/Te heterojunctions.

Caption

a, Transient THz dynamics of Te/Ge and Ge/Te heterojunctions with 800 nm excitation wavelength. b, Left: Calculated space distribution of the differential charge density for different materials on substrate. The color blue (yellow) denotes electron depletion (accumulation). Right: Schematic substrate-induced electric fields and charge transfer in heterojunctions of Te/Ge (upper) and Ge/Te (lower), respectively.

Credit

by Pujing Zhang, Qihang Liang, Qingli Zhou, Jinyu Chen, Menglei Li, Yuwang Deng, Wanlin Liang, Liangliang Zhang, Qinghua Zhang, Lin Gu, Chen Ge, Kui-juan Jin, Cunlin Zhang, Guozhen Yang

Usage Restrictions

Credit must be given to the creator.

License

CC BY

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.